it职业英语第三版答案

高级英语第三版课后答案

第一课

Paraphrase:

?1. We are 23 feet above the sea level.

?2. The house has been here since 1915, and has never been damaged

by any hurricanes. ?3. We can make the necessary preparations and survive the hurricane without much damage. ?4. Water got into the generator and put it out. It stopped producing electricity so the lights also went out.

?5. Everybody go out through the back door and run to the car.

?6. The electrical systems in the car (the battery for the starter) had been put out by w ater. ?7. As John watched th

第一章 温度

1-1 在什么温度下,下列一对温标给出相同的读数：（1）华氏温标和摄氏温标；（2）华氏温标和热力学温标；（3）摄氏温标和热力学温标？

解：（1）

当 时，即可由 时

，解得

故在 （2）又

当 时 则即

解得： 故在 （3）

若

则有

时，

显而易见此方程无解，因此不存在

的情况。

1-2 定容气体温度计的测温泡浸在水的三相点槽内时，其中气体的压强为50mmHg。 （1）用温度计测量300K的温度时，气体的压强是多少？ （2）当气体的压强为68mmHg时，待测温度是多少？

解：对于定容气体温度计可知：

(1)

(2)

1-3 用定容气体温度计测得冰点的理想气体温度为273.15K，试求温度计内的气体在冰点时的压强与水的三相点时压强之比的极限值。

解：根据 已知 冰点

。

1-4 用定容气体温度计测量某种物质的沸点。 原来测温泡在水的三相点时，其中气体的压强

；当测温泡浸入待测物质中时，测得的压强值为

减为200mmHg时,重新测得

,当从

,当再抽出一些

测温泡

Answers to listening and speaking BookII

Unit 1

Part A

Exercise 1 1. 398-4071 2. 278-9536

3. 1390-1910-466 4. 415-566-1268 5. 5-078-2489 6. 6102-9517-2880 7.210-699-4982 8. 6-592-7649 Exercises 2

Is that you/ Can I leave a message/ call me back/ 860-2505/give her the message when she returns home.

Part B conversation 1

Exercise 1

1 father&daughter

2. they are talking about the pictures Gloria left for him 3. Riding a motorcycle

4. He thinks John looks a little strange because John wears a pony tail. 5. she says he is old-fa

Lesson 1 Question:

1. Why did John Koshak decide to stay although he knew the hurricane would be bad?

For the following reasons: For one thing, the house was 23 feet above sea level; for another,he was unwilling to abandon his home.

2. How did the man prepare for the hurricane? Why was a generator necessary?

They filled bathtubs and pails. Besides, they checked out batteries for portable radio and flashlights, and fuel for the lantern. A generator was necessary because John's father wired several light bulbs to it and prep

1

Lead-in: 1. hold 2. supposed 3. absent-minded 4. dependable 5. responsible 6. boring 7. engineers are assumed to have a good profession8. as people don’t know the importance of engineers in society

2: 1. What's the main idea of this passage? Answer: Working fathers have received little media attention in the US and they have been given little cultural recognition, which is a kind of prejudice against those working dads. 2. What's the author ' s attitude toward working dads? Answer: She

Lesson 1

Question:

1. Why did John Koshak decide to stay although he knew the hurricane would be bad?

For the following reasons: For one thing, the house was 23 feet above sea level; for another,he was unwilling to abandon his home.

2. How did the man prepare for the hurricane? Why was a generator necessary?

They filled bathtubs and pails. Besides, they checked out batteries for portable radio and flashlights, and fuel for the lantern. A generator was necessary because John's father wired several light bulbs to it and prepar

Lesson 1

Question:

1. Why did John Koshak decide to stay although he knew the hurricane would be bad?

For the following reasons: For one thing, the house was 23 feet above sea level; for another,he was unwilling to abandon his home.

2. How did the man prepare for the hurricane? Why was a generator necessary?

They filled bathtubs and pails. Besides, they checked out batteries for portable radio and flashlights, and fuel for the lantern. A generator was necessary because John's father wired several light bulbs to it and prepar

Answers to listening and speaking BookII

Unit 1

Part A

Exercise 1 1. 398-4071 2. 278-9536

3. 1390-1910-466 4. 415-566-1268 5. 5-078-2489 6. 6102-9517-2880 7.210-699-4982 8. 6-592-7649 Exercises 2

Is that you/ Can I leave a message/ call me back/ 860-2505/give her the message when she returns home.

Part B conversation 1

Exercise 1

1 father&daughter

2. they are talking about the pictures Gloria left for him 3. Riding a motorcycle

4. He thinks John looks a little strange because John wears a pony tail. 5. she says he is old-fa

Answers to listening and speaking BookII

Unit 1

Part A

Exercise 1 1. 398-4071 2. 278-9536

3. 1390-1910-466 4. 415-566-1268 5. 5-078-2489 6. 6102-9517-2880 7.210-699-4982 8. 6-592-7649 Exercises 2

Is that you/ Can I leave a message/ call me back/ 860-2505/give her the message when she returns home.

Part B conversation 1

Exercise 1

1 father&daughter

2. they are talking about the pictures Gloria left for him 3. Riding a motorcycle

4. He thinks John looks a little strange because John wears a pony tail. 5. she says he is old-fa

Lesson 1 Question:

1. Why did John Koshak decide to stay although he knew the hurricane would be bad?

For the following reasons: For one thing, the house was 23 feet above sea level; for another,he was unwilling to abandon his home.

2. How did the man prepare for the hurricane? Why was a generator necessary?

They filled bathtubs and pails. Besides, they checked out batteries for portable radio and flashlights, and fuel for the lantern. A generator was necessary because John's father wired several light bulbs to it and prep